CD74FCT2646ATM

Overview

The CD74FCT2646ATM is an octal bus transceiver manufactured by Harris Corporation, belonging to the FCT series. It features a 20-pin small outline package and operates with CMOS technology. The device supports bidirectional data transfer with three-state outputs and includes independent control capabilities. It is designed for high-speed applications within the Fast CMOS logic family.

Feature Summary

• Octal bus transceiver architecture supporting bidirectional data flow
• Three-state outputs for effective bus line management
• Independent control inputs for flexible direction selection
• Fast CMOS technology optimized for high-speed digital systems

Applications

• High-speed memory buffer implementations
• Clock driver circuits requiring signal isolation
• Bidirectional bus architectures in computing systems
• Data acquisition systems needing isolated I/O paths

Procurement Notes

Verify component authenticity through authorized distributors or certified suppliers. Confirm manufacturing date codes and lot traceability to ensure compliance with project specifications. Check for RoHS status as original Harris documentation may indicate non-compliance. Validate packaging integrity upon receipt to prevent damage to the small outline package during handling.

Selection Notes

Select this component when designing systems requiring octal wide-bus interfacing with low propagation delay characteristics. Ensure supply voltage levels match the specific FCT series requirements. Consider thermal dissipation needs for dense PCB layouts. Verify that the independent control feature aligns with the system's direction switching logic requirements.

Part Context

This part belongs to the Harris FCT (Fast CMOS) logic family, known for speed comparable to TTL but with CMOS power efficiency. The manufacturer, Harris Semiconductor, was acquired by Intersil, which later merged with Renesas Electronics. This historical context is relevant for sourcing replacement components from current manufacturers holding the legacy rights.